Seiko Cal. 6680 - 968

The 6680-968 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-55a1bff8062f]

Also known as: Sumo, Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1967

Related Models

• Seiko 4412-228
• Seiko 6160-574
• Seiko 3845-663
• Seiko 5211-562
• Seiko 5290-414
• Seiko 7069-294
• Seiko 6130-467
• Seiko 6687-605
• Seiko 7179-820
• Seiko 0768-621
• Seiko 3868-641
• Seiko 5629-527